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MONITORING WELL SAMPLING DATA <br /> Protect Name Stockton Maintenance Sta <br /> Project Number 58475-06-24H <br /> Well No MW-10 Date 9/3/03 <br /> Well Diameter 4 in Field Personnel JE <br /> Casing Length 76 20 feet Screened Casing Length NA <br /> LWell Elevation 21 79 feet above MSL <br /> PURGE CHARACTERISTICS <br /> Water Depth Before Purging 52 99 ft 1 2 in= 1632 Gal/ft 4 in = 6528 Gal/ft <br /> Calculated Water Column Volume 15 15 GalTPurged 30 <br /> Start Purging Time 1022 End Purging Time 1041 <br /> Total Time 19 min Flow Gauge to <br /> Total Volume Pumped 46 Gal Avg Flow Rate 2 4 gpm <br /> Water Depth After Purging feet Time <br /> 10 SAMPLING CHARACTERISTICS <br /> Purging Method Submersible Pump 11 Sampling Method Disposable Bailer <br /> Laboratory Analysis TPHg, TPHd, BTEX, 5 FOCs by EPA Test Method 8260 <br /> TIME TEMPERATURE CONDUCTIVITY pH Gallons <br /> °C (umhos/cm) Purged <br /> 1028 225 398 736 15 <br /> 1034 222 394 741 30 <br /> i 1041 220 398 744 46 <br /> 1 <br /> 1045 Sample <br /> iComments Purge water clear <br /> 1 <br /> Turbidity= 52 ntu <br />